.NET Senior Fullstack Engineer

You’re passionate about transforming legacy systems into robust, maintainable, and modern solutions? As part of SQUER’s Software Transformation Unit, you’ll work directly with our clients to re-engineer their systems and shape the future of enterprise software – one .NET solution at a time. From backend logic to frontend architecture – you’ll shape impactful systems that deliver long-term value.

• Transformation Projects: Reinvent and modernise existing software systems through clean code, scalable architecture, and Microsoft-first technologies.
• Hands-on Engineering: Build fullstack solutions in .NET/C#, from backend logic to modern frontends, tailored to enterprise environments.
• Architecture & Integration: Design integration patterns using APIs, event-driven communication, and data synchronisation.
• Best Practices: Apply and advocate for software craftsmanship, testing, and DevOps principles across client projects.
• Technical Enablement: Share knowledge within teams and with customers – as a mentor, collaborator, and coach.
• Customer Collaboration: Work in agile teams alongside our clients and shape their technology landscape with your ideas.

• .NET Expertise: Proficient in C# and the Microsoft development ecosystem, with experience across backend and frontend components.
• Architecture Fundamentals: Understanding of event-driven architectures, API design, and data migration concepts.
• Infrastructure Understanding: Basic knowledge of containerisation, API gateways, and cloud infrastructure in Microsoft environments.
• Consulting Mindset: Clear communication, strong ownership, and a collaborative spirit when working with customers.
• Agile Delivery: Experience working in agile teams and contributing to iterative, feedback-driven development processes.
• Languages: Fluent in German and English

• Ownership & Responsibility: at SQUER, we believe in empowering our team. In our flat hierarchies, your ideas and actions matter more than titles. Take the reins, make an impact and grow with us. 
• Learn & Grow: Tap into a € 5.000 annual training budget to sharpen your skills and take advantage of our in-house Leadership Academy. Join and be part of our active tech community through meetups, hackathons and training sessions. Get up to 40h/year additional time off for your personal education.
• Exciting Challenges & Real Impact: Dive into diverse projects where your work truly makes a difference – for our clients and for SQUER.
• Flexibility for Performance: Benefit from hybrid work options, flexible hours, workations within the EU, and additional vacation days – giving you the freedom to perform at your best.
• Tailored Tools for Success: Choose your preferred hardware configuration to suit your working style.
• We Value You: Beyond perks and benefits, we offer a competitive annual salary to recognize your exceptional contributions.
• Be Part of a Thriving Team Culture: At SQUER, collaboration and connection are at the heart of what we do. Through open communication, shared successes, and meaningful team events – including our annual SQUER offsite – we cultivate a culture where everyone feels valued and inspired to grow together.
• A Perks-Packed Workplace: Work in a central office with a spacious terrace and BBQ, enjoy free lunch in the office, MyClubs sports membership, and either a free “Wiener Linien” ticket or a partial contribution to the “Klimaticket”. Plus, benefit from free massages, referral bonuses, Corporate Benefits, and JobRad. Annual employee presents and a monthly team breakfast add extra value to your work experience.